      1   1 Identifier i
      1   3 Op_assign
      1   5 Integer 5 
      1   6 Semicolon
      2   1 Keyword_if
      2   4 LeftParen
      2   5 Identifier i
      2   6 RightParen
      3   3 Keyword_putc
      3   7 LeftParen
      3   8 Integer 102 
      3  11 RightParen
      3  12 Semicolon
      4   1 Keyword_if
      4   4 LeftParen
      4   5 Op_not
      4   6 Identifier i
      4   7 RightParen
      5   3 Keyword_putc
      5   7 LeftParen
      5   8 Integer 98 
      5  11 RightParen
      5  12 Semicolon
      6   1 End_of_input
